PowerMILL动力 工艺为基础的加工.ppt

PowerMILLWorld leader in process-based machining
Sandy Moffat
Delcam
What is process-based machining?
Process-based machining develops a unique process, comprising many toolpaths, to manufacture specific parts
It is needed plex parts and tooling, with few, if any, standard geometric shapes
It is also required for highest-quality surface finish, . for mould tools
It can be used to program long runs of parts, when machining time is more important than programming time
It requires a trained user that will usually be a machining specialist, either in a CADCAM office or on the shop floor
History of PowerMILL
First introduced in 1995 as stand-alone CAM system
Intended for use alongside CAD systems with weak CAM
Ease-of-use leads to adoption for shop-floor machining, especially in North America
Initial development focuses on HSM
Race Line Machining for smoother bination offset and trochoidal to protect cutter
Spiral constant Z finishing to minimise air cutting
Wide range of entry and exit options to minimise tool wear and dwell marks
High-speed machining
5-Axis Machining
5-axis development starts in 2003
Wide range of 5-axis strategies – through a line, through a point, profiling, trimming, swarf etc.
Automatic calculation of optimum lead and lean
Auto-tilt to avoid collisions
Gouge and collision checking on all toolpaths
Machine tool verification
Simulation/verification added in 2005
Allows programs to be checked on puter before being sent to the machine
Models available mon machine tools
plex 5-axis machining with high confidence in results
Increased confidence allows unmanned machining, . overnight
PowerMILL Modelling
Integrated CAD added in 2006
Includes CAD options in the CAM window
Contains tools for model fixing and creating extra data
Ideal for use on the shop floor
Module for port machining
Automatically divides port between areas that need 3, 3+2 and 5-axis machining
Machining overlap ensures smooth transition between toolpaths from each end